CAUTION: The switch activates a solenoid that, if activated too long, causes permanent damage to the solenoid. The timer relay is properly set at the factory and the switch on it should not be altered. Altering standard factory setting will cause improper function of TruCenter™ and/ or permanent damage to the solenoid. Although a timer relay is installed to protect the solenoid, we recommend NOT activating the solenoid for periods longer than 5 to 10 seconds at a time. It is better to make multiple, fine adjustments than to hold the switch and try to align in one, time-consuming operation.